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I 've unmounted a disk /dev/vdc1 on my machine, after I format it into xfs file system, I didn't mount it again, either didn't add the adequate line to fstab file.

Now when i want to mount this partition, but I can't access to it: mount: can't find dev/vdc1 in /etc/fstab or /etc/mtab. So how should I put in fstab file so the system recognizes it again ? the partition was mounted on /Data

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Try running (or installing) GParted, this allows you to play with all your partitions. –  SimplySimon Jun 3 '13 at 10:00
    
Thank you for the replay, I'm on a server, i don't have graphical environment. –  Dady Jun 3 '13 at 12:21
    
Sorry, still quite new at this :) –  SimplySimon Jun 3 '13 at 12:28

2 Answers 2

up vote 1 down vote accepted

So here we create an fstab entry for the partition:

  1. You need to create the folder for the partition and get the device id.
    Open a terminal. The folder can be created via

    sudo mkdir /media/Data
    In addition I would make the user the owner and give him the right to read/write:
    sudo chown [user]:[group] /media/Data
    sudo chmod +rw /media/Data

  2. Now the fstab entry:

    • Install libblkid1 to see device specific information: sudo apt-get install libblkid1
    • Enter sudo blkid and look for the stick. The output could be:
      /dev/sda2: UUID="32a4b76f-246e-486e-8495-31b8a781fb4c" TYPE="swap" 
      /dev/sda1: UUID="31f39d50-16fa-4248-b396-0cba7cd6eff2" TYPE="ext4"
      
    • Then we create the fstab entry: sudo gedit /etc/fstab and append the line
      UUID=31f39d50-16fa-4248-b396-0cba7cd6eff2     /media/Data   auto    rw,user,auto    0    0
      (and afterwards give a empty new line to avoid warnings).

To mount the partition, open a terminal and type

mount /media/Data
Because of the entry auto it should be mounted automatically on next boot.

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Thank you for the detailed replay, but i think i didn't well explain my problem, i've attached a storage disk to my server mounted on /Data (configured when creation), after that, i wanted to format it to xfs, so i unmounted the disk, formated it, and then...forget to remount it again and the same thing with fstab....the server was rebooted, and now when i want to mount the disk so it can be listed with the other disks....it's impossible cause there is no entry in fstab,...i think your solution is for creating a new mounting folder and assign to it the disk. –  Dady Jun 3 '13 at 12:22
    
my proble is that i didn't find the disk even with "sudo blkid", sorry for the late replay –  Dady Jun 3 '13 at 12:23

First you need to find out UUID of your disk by following command

sudo blkid

Note your disk UUID.

Now open fstab file with gedit

sudo gedit /etc/fstab

Replace your old disk UUID with your noted UUID.
Save file and reboot your system. You will be able to mount disk.

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Thank you for the replay, i tried "sudo blkid" i got only UUID for : /dev/vda1 and /dev/vda2, is like there is no /dev/vdc1 disk (on the same time, there is this partition, cause i attached a storage disk to my server mounted on /Data and worked on it, before i do the unmount), sorry for the late replay –  Dady Jun 3 '13 at 12:20
    
If your problem is solved, mark as accepted answer. It will help others. –  K.K Patel Jun 3 '13 at 12:53
    
Not yet, but i'm gonna do it, cause i think my problem has no relation with linux, it's the storage disk's catalogue –  Dady Jun 3 '13 at 13:05
    
Can you tell us more about your hardware setup? Doesn't seem to be an standard HDD –  Manuel Jun 4 '13 at 5:50

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